Bio-inspired Superhydrophobic Coating with Low Hydrate Adhesion for Hydrate Mitigation  

作　　者：Sanbao Dong Mingzhong Li Chenwei Liu Jie Zhang Gang Chen 

机构地区：[1]College of Chemistry and Chemical Engineering,Xi'an Shiyou University,Xi'an 710065,China [2]College of Petroleum Engineering,China University of Petroleum,Qingdao 266580,China

出　　处：《Journal of Bionic Engineering》2020年第5期1019-1028,共10页仿生工程学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.51704316 and 51974252);the Natural Science Basic Research Plan in Shaanxi Province of China(Program No.2020JQ-775);Scientific Research Program of Shaanxi Provincial Education Department(18JC025),China;Shaanxi Provincial Key Research and Development Program(2019ZDLGY06-03),China;Science and Technology Program of Xi’an,China(No.2019217914GXRC015CG016-GXYD15.4);Scientific Research Program Funded by Shaanxi Provincial Education Department(19JK0658).

摘　　要：In this paper,we fabricate a biomimetic superhydrophobic coating on an X90 pipeline steel substrate by electrodeposition of copper,hydrothermal treatment to form a copper oxide layer,and subsequent surface modification with Stearic Acid(SA).The coating exhibits static contact angles of water of 160°±-3.1°in the air and 170.7°±2.5°in cyclopentane,indicating the strongly water-repelling nature of the coating.The morphologies of the cyclopentane hydrate formed on steel substrates with and without the superhydrophobic coating are investigated.The results show that the hydrate particle on the coating exhibits spherical morphology and herein the interfacial contact area and adhesion force to the solid surface can be essentially reduced.The adhesion force reduction may be resulted by the decrease in the contact area between the hydrate and the solid surface.

关 键 词：gas hydrate CYCLOPENTANE contact angle bio-inspired coating SUPERHYDROPHOBIC ADHESION 

分 类 号：TG174.4[金属学及工艺—金属表面处理]